Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- # original slow method to find a number plus a divider (|)
- # at the start of a line
- def find_num(file, num)
- found = false
- File.read(file).each do |line|
- if line.chomp.split('|', -1)[0] == num
- found = true
- break
- end
- end
- # new method that uses the system's grep
- # since this calls the system, make sure that you trust the values
- # of file and num
- def find_num(file, num)
- found = false
- found = true if %x[grep -cm1 "^#{num}|" "#{file}"].chomp == '1'
- found
- end
Add Comment
Please, Sign In to add comment